Calibration of accelerometers with impact excitation and reference method;Calibration of Sub-lO-nm Flying Height Using the Bump Response; COMPRESSOR TEST RIG FOR MEMS-BASED TURBO MACHINERY; Design and control of a spherical air-bearing system for multi-d.o.f, ball-joint-like actuators;Design consideration for single-pole-type write heads; Design of a 3D CMM with elastically guided z-axis and x, y axis with less than 2 mm ABBE offset